/**
 * Copyright (C) 2007 Google Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package com.google.inject.tools.ideplugin;

import com.google.inject.tools.ideplugin.JavaProject;

import java.util.Set;

/**
 * The source for finding projects.
 * 
 * @author Darren Creutz (dcreutz@gmail.com)
 */
public interface ProjectSource {
  /**
   * A listener for changes in projects.
   */
  public interface ProjectSourceListener {
    public void javaManagerAdded(ProjectSource source, JavaProject javaProject);
    public void javaManagerRemoved(ProjectSource source, JavaProject javaProject);
  }

  public void addListener(ProjectSourceListener listener);

  public void removeListener(ProjectSourceListener listener);

  /**
   * Find initially opened projects.
   */
  public Set<JavaProject> getOpenProjects();
  
  public void listenForChanges(boolean listenForChanges);
  
  public boolean isListeningForChanges();
}
